The idle is rough. If you give it gas the engine trys to die. If I get the idle slowly up to 2000 rpm then the engine revs between 2 and 3000 rmp. If you floor the pedle in idle , the car dies. If you. Try and do a powe breake, the car dies. The car will not go over 25 mph. I have replaced the spark plugs, wires, cap, rotor, idle air control valve, drive belts. There is no vacuum leak that I can find. I jused break cleaner and sprayed it all around the intake and vacuum lines. All fluids are full. Timing belt is in good condition. The cat is not pluged or restricted ( I unbolted it and ran the car, no change ). Fuel pressure is at 60 psi. After 20 mins of running the car the idle cleaned up a little, but when you give it any amou.nt of gas, it wants to die. I'm out of ideas. Can you please help ? Thank you, Doug.

The symptoms you describe are consistent with a mass airflow problems. Take note that the 1998/2002 Accords do not have a MAF (mass airflow sensor) but rather, a MAP sensor. Take this unit out and clean it with electrical circuit spray cleaner. Its best NOT to wipe the sensor dry after cleaning, because the liquid will evaporate by itself, and you will reduce the possibility of damaging the delicate printed circuits.After cleaning and reinstalling, disconnect the negative terminal of the battery, so that the computer (ECM) resets itself and gathers the new readings from the sensor to adjust the mixture. IF the sensor has failed, and need to be replaced, the check engine light should be on.

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Could be several things, a vac leak, dirty throttle body, or faulty idle air control valve.The computer controls idle speed by how much air enters the throttle body thru the valve.Usually a vac leak would speed up the engine unless it is causing the rough idle.